Sink-trap



(No Model.)

J. R. READ'ER.

. SINK IRAP. No. 417,441. Patenfed Dec. 17, 14889.

fmses; 4 177W?? UNITED i STATES PATENT OFFICE.

JOHN R. READER, OF BROOKLYN, NEV YORK.

slNK-TRAP.

SPECIFICATION forming part of Letters Fatent No. 417,441, dated December 17. 1889. Application filed October 10, 1889. Serial No. 326,608. l (No model.) w

- Brooklyn, in the county of Kings and State of New York, have invented a certain new vand useful Improvement in Sink-Traps, of

which the following is a specification.

My improvement relates to traps, such' as are to be employed with usually what are termed kitchen-sinks- I will describe in detail a si nk-trap embodying my improvement andl'then point out th novel features in a claim. l

In the accompanying drawings, Figure 1 is a Vertical section of a sink and a trap embodying my i'mprovement. Fig. 2 is a detached view, also in section, of a strainer and vits accompanying parts, which I employ.

Similar letters of reference dlesignate correspon'ding parts in all the figures.

A designates akitchen-sink, which may be of ordinary construction. Upon the under side of the sink is formed a well B. Extending about centrally and upward for a distance into said well, and also down below the same is a waste-pipe O.

E designates a strainer, shown as provided with a ring e, by which it may be readily inserted and removed. This strainer comprises at its upper end a flangeF, which flange is of greater diameter than theupper end of the Well B and extends over and rests upon the adjaeent portions of the bottoin of the sink A. It is provided circumferentially in- Ward of its outer edge with apertures f, through which waste water from the sink will pass.

Extendin'g downwardly from the flangeE is a tube or pipe G, which tube or pipe is of greater diameter than is the waste-pipe C. Near the lower end of the tube or pipe G the same is provided with apertures g. Waste water passing downwardly through the aperturesis received in the well B, passing thence through the aperturesl g, and from there upwardly to the open upper end of the waste-pipe O and thence downwardly out through said waste-pipe.

At the lower end portion of the tube 01' pipe G is a horizontany-exnding flange H. ThisV fiange is 'provided about centrally with an aperture which is of but slightlygreater diameter than is the diameter of the wastepipe C, so that when the strainer is inserted in the Well B the waste-pipe O will substantially fit the said aperture in the fiange H, said fiange also extending laterally to about 'the inner wall of the well B, its diameter being such that when arranged in the well it formsthe bottom for the well B. As shown, its outer edgesare turned upwardly. This maybe done by suitable tools, 01' if the strainer is cast the upturned edge may be formed in the casting. l

Dirt or sediment passing downwardly through the apertures f will fall upon the fiange H. When the trap becomes clogged, the same may be readily removed, and then by removing such dirt or sediment from the flange H it will be again brought into condition for praotieal and successful use.-

It will be seen that by my improvement none but substanially clear water will pass through the apertures g into the waste-pipe C, while all the dirt or sediment will be collected in Ithe fiange' H. It will also be seen that as the upper end of the waste-,pipe is above the aperturcs g a trap is effected which prevents the passage of sewcr-gas to the sink.

What I claim as my invention, and desire to secure by Letters Patent, is-.

The combination, with a sink provided with a well and a waste-pipe extendng upwardly into said well, of a strainer adapted to ex- 

